Federal agencies must now certify new hires' continued service is in the public interest for tenure, shifting from automatic tenure unless removed. Increases agency discretion during probationary/trial periods. This order replaces automatic tenure after probation with required agency certification, granting broader discretion in dismissing new federal hires. While proponents see improved accountability and efficiency, critics argue it erodes employee protections and increases the risk of politically motivated or arbitrary terminations, undermining merit system principles.